Hi,
You have errors in the first 2 font-face tags. The url should be within the parenthesis () - like you have in the media query below. Plus the 2nd one has 2 urls together.
Should be:
@font-face {
font-family: Classico;
src: url('https://static1.squarespace.com/static/605f4ff1a45fbc59069babdc/t/606f07e087c8fc5a71d384f9/1617889248411/Classico.otf');
}
@font-face {
font-family: Classico-Bold;
src: url('https://static1.squarespace.com/static/605f4ff1a45fbc59069babdc/t/606f094d3062b77635fbb408/1617889613671/Classico-Bold.otf');
}
That should sort it.